Malicious RTF / .DOC — malware analysis report

Static analysis result for SHA-256 d5f9868247128595…

MALICIOUS

RTF / .DOC

432.2 KB First seen: 2024-05-28
MD5: 520c787857586063238e4684770f9f51 SHA-1: bcc10a912754c22eccfc20f8840dd83bbbc40770 SHA-256: d5f9868247128595477ac9fb6a5af781853986c05adf9d111b10b59e7fbe962e
80 Risk Score

Malware Insights

MITRE ATT&CK
T1204 Malicious Link T1204.002 Malicious Link: Malicious File T1566 Phishing T1566.001 Phishing: Spearphishing Attachment

The RTF document contains OLE object data and an \objupdate directive, indicating an attempt to embed and activate an object. The document body includes a lure instructing the user to 'click Enable editing', a common tactic to bypass security measures and execute embedded malicious content. The presence of these elements suggests the file is designed to trick the user into enabling content that will likely download and execute a secondary payload.

Heuristics 3

  • \objupdate forces OLE activation high RTF_OBJUPDATE
    RTF contains \objupdate — forces automatic OLE object instantiation when the document is opened, bypassing user interaction. Almost exclusively seen in Equation Editor exploit documents.
  • OLE object data medium RTF_OBJDATA
    RTF contains 1 \objdata section(s) — embedded OLE objects
  • Macro/content-enable lure medium SE_ENABLE_LURE
    Document instructs the user to enable macros or editing — a common technique used by malware droppers to bypass Office macro security settings

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
objdata_00_off00016b45.bin
538a50d0a135b9102f821097a17b5d8dbeb36a3d1923c4f644c32a58957c2a4d
rtf-objdata-decoded RTF \objdata at offset 0x16B45 1714 bytes